package com.guli.gulimall.product.exception;

import com.guli.common.exception.BizCodeEnum;
import com.guli.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理所有异常
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.guli.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ResponseBody
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e) {
        log.error("数据校验出险问题:{},异常类型:{}", e.getMessage(), e.getClass());
        BindingResult result = e.getBindingResult();
        Map<String, String> map = new HashMap<>();
        if (result.hasErrors()) {
            result.getFieldErrors().forEach((item) -> {
                //获取发生错误时的message
                String message = item.getDefaultMessage();
                //获取发生错误的字段
                String field = item.getField();
                map.put(field, message);
            });
        }
        return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(), BizCodeEnum.VALID_EXCEPTION.getMsg()).put("data", map);
    }

    @ResponseBody
    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable e){
        log.error("错误：",e);
        return R.error(BizCodeEnum.UNKNOW_EXEPTION.getCode(),BizCodeEnum.UNKNOW_EXEPTION.getMsg());
    }
}